body {
    margin: 0rem;
    padding: 0rem;
    /* font-family: '微软雅黑'; */
    /*color: #fff;*/
    position: relative;
    height: 100%;
}

html,
body {
    /* height: 100%; */
    background: #000;
    /*background-size: 100% 100%;*/
    min-width: 1900rem;
    min-height: 1080rem;
}
.back_top {
    position: absolute;
    width: 1900rem;
    top: 10rem;
    left: 50%;
    margin-left: -950rem;
    z-index: 2;
}

.back_bottom {
    position: absolute;
    width: 1900rem;
    bottom: 0rem;
    left: 50%;
    margin-left: -950rem;
    z-index: 2;
}

.back_left {
    position: absolute;
    width: 10rem;
    top: 100rem;
    left: 0;
    z-index: 2;
}

.back_right {
    position: absolute;
    width: 10rem;
    top: 100rem;
    right: 0;
    z-index: 2;
}
.top_zhezhao {
    background: linear-gradient(to bottom, #000, rgba(0, 0, 0, 0));
    width: 100%;
    height: 200rem;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}
.bottom_zhezhao {
    background: linear-gradient(to top, #000, rgba(0, 0, 0, 0));
    width: 100%;
    height: 200rem;
    position: absolute;
    bottom: 0;
    left: 0;
    z-index: 1;
}
.header {
    position: relative;
    z-index: 5;
    padding-top: 3rem;
    padding-left: 60rem;
    padding-right: 60rem;
}
.bottomMenu {
    width: 400rem;
    position: absolute;
    left: 50%;
    margin-left: -200rem;
    bottom: 45rem;
    z-index: 5;
}
.bottomMenu > div {
    -webkit-box-reflect: below -14px linear-gradient(transparent, rgba(0, 0, 0, 0.4));
}
.bottomMenu div a {
    color: #fff;
    text-decoration: none;
    padding: 10rem 20rem;
}
.bottomMenu > div.active a {
    color: #00d1ff;
    background: url(../images/menu_active_back.png) no-repeat bottom center;
    background-size: 100% auto;
}
